<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="请输入城市名或拼音" />
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" v-for="(item, index) of list" :key="index"  @click="handleChangeCity($event,item.name)">{{item.name}}</li>
        <li class="search-item" v-show="hasList">暂未查到该数据信息</li>
      </ul>
    </div>
  </div>
</template>

<script>
import BScroll from 'better-scroll'
import { mapActions } from 'vuex'

export default{
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  methods: {
    handleChangeCity (e, city) {
      this.currentChangeCity(city)
      this.$router.push('/')
      console.log(e.target)
    },
    ...mapActions({
      currentChangeCity: 'changeCity'
    })
  },
  computed: {
    hasList () {
      return !this.list.length
    }
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      setTimeout(() => {
        const result = []
        for (let key in this.cities) {
          this.cities[key].forEach((value) => {
            if (value.spell.indexOf(this.keyword) !== -1 || value.name.indexOf(this.keyword) !== -1) {
              result.push(value)
            }
          })
        }
        this.list = result
      }, 100)
    }
  },
  mounted () {
    this.scroll = new BScroll(this.$refs.search)
  }
}
</script>

<style lang="stylus" scoped>
  .border-bottom
    &:before
      border-color: #aaaaaa
  .search
    height: .72rem
    padding: 0 .1rem
    background-color: #00bcd4
    .search-input
      box-sizing: border-box
      padding: 0 .3rem
      width: 100%
      height: .62rem
      line-height: .62rem
      text-align: center
      border-radius: .06rem
      color: #666666
  .search-content
    z-index: 1
    overflow: hidden
    position: absolute
    top: 1.58rem
    left: 0
    right: 0
    bottom: 0
    background-color: #eeeeee
    .search-item
      line-height: .62rem
      padding-left: .2rem
      color: #666666
</style>
